Hello,
I have several of these pistols. I have the .22 and .25 models. I would hazard against carrying them as a primary pistol, just because neither are reliable show stoppers. ANY gun is better than no gun. The .22 just has too many ignition or feeding failure (from any handgun). and the .25 is basically the same cartridge but in a more reliable feeding and ignition platform.
If I was going to carry one as a primary. I would NOT use the firing pin safety and just rely on the thumb/frame safety. I would use a behind the hip position in a open scabbard belt slide holster. Something that does not clip to the belt because, the plastic or metal clip always fails. Try it a few times at the range for yourself. You will draw the pistol with the holster, often. A slide nylon or leather scabbard type that loops through your belt. There aren't any dedicated kydex (my preference) holsters for this pistol because, it is out of date and I do not believe is still in production.
Because of the size of the cartridge, you will have to get dirty with it. You must practice drawing quickly and rapidly putting two shots to the spot right above the sternum. That's the area where the heart has its largest arteries. The heart will still beat and pump out as much of the blood as possible. Then rapidly transition to the head and dump the remaining shots into the nose/eye/sinus cavity. It is the thinnest areas of the skull, will cause yawing and shattering of the bullet. This area is also directly in line with the cerebellum/base of the skull and "monkey brain". You'll be shutting off the body, like a light switch. You will have to shoot until they are on the ground. Rapidly put in a fresh magazine and prepare to repeat, bad guys travel in packs. Train to do this on the move. Don't stand there and engage in a gun fight. MOVE, get off The Square.
Practice will be essential. Especially with the magazine. You have to put the safety on BEFORE you can remove the magazine. Practice flipping that safety on and ripping out the magazine OR you can use your Dremel Tool to grind out a piece of sheet metal so, you don't have to do that anymore. BUT now you've adjusted the pistol and may have to explain that in court, be advised.
Get PARTS on eBay for that pistol. Buy several slides. The slides are prone to cracking (mine just did) and are hard to replace. You have to put 100s or 1000s of rounds through that pistol to get good.
